662240

素因数分解:

$2^5\times 5^1\times {\mathrm{4139}}^1$

素因数の和:4154

約数の個数: 24

約数和(自身を含む): 1564920

約数和(自身を除く): 902680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 4139, 8278, 16556, 20695, 33112, 41390, 66224, 82780, 132448, 165560, 331120, 662240]

約数ペア:

[(1, 662240), (2, 331120), (4, 165560), (5, 132448), (8, 82780), (10, 66224), (16, 41390), (20, 33112), (32, 20695), (40, 16556), (80, 8278), (160, 4139)]